CN201727981U - Reflux ratio control device - Google Patents

Reflux ratio control device Download PDF

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Publication number
CN201727981U
CN201727981U CN2010202684690U CN201020268469U CN201727981U CN 201727981 U CN201727981 U CN 201727981U CN 2010202684690 U CN2010202684690 U CN 2010202684690U CN 201020268469 U CN201020268469 U CN 201020268469U CN 201727981 U CN201727981 U CN 201727981U
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CN
China
Prior art keywords
time relay
reflux ratio
control device
opened contact
normally opened
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Expired - Fee Related
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CN2010202684690U
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Chinese (zh)
Inventor
林仁华
薛云飞
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ZHEJIANG HAIZHENG CHEMICAL Co Ltd
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ZHEJIANG HAIZHENG CHEMICAL Co Ltd
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Priority to CN2010202684690U priority Critical patent/CN201727981U/en
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Publication of CN201727981U publication Critical patent/CN201727981U/en
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Abstract

The utility model provides a reflux ratio control device, which solves the problems in the conventional reflux ratio control device that the operation is difficult and the maintenance is inconvenient. The reflux ratio control device comprises a power supply, a time relay module, a switch control module and a three-way valve mechanism, wherein, the power supply and the switch control module are connected with the time relay module; the three-way valve mechanism comprises a valve body and a valve core; the valve body is provided with a water inflow channel and two water outflow channels; the valve core can seal up either of the two water outflow channels; the valve core is connected with the switch control module; and the time relay module can control the valve core to seal up the two water outflow channels through the switch control module in a periodically reciprocating way. The reflux ratio control device is simple and reliable in operation, accurate in reflux ratio control and convenient for maintenance and has wide applicability.

Description

A kind of reflux ratio control device
Technical field
The utility model relates to a kind of reflux ratio control device, belongs to the part of rectifying column in the Chemical Manufacture.
Background technology
Using rectifying column is the method for separating mixed liquids commonly used in a kind of Chemical Manufacture, and it utilizes the different characteristic of each component boiling point in the mixing material to reach the purpose of separating mixed liquids.The size of reflux ratio is returned the interior phegma flow of tower and the ratio of cat head extraction flow quantity for the rectifying column cat head, and it affects the purity of operating cost, installation cost and product in the production process, is one of important indicator in the distillation operation.Reflux ratio controller is the important device of control reflux ratio, the primary structure of the most frequently used in the market swinging-bucket type reflux ratio controller is equipped with drag link mechanism, liquid bucket in its vertical cylindrical shell, cylinder is provided with a baffle plate in the middle of the bottom, be separated out backflow liquid collecting space and extraction liquid collecting space, by the side-to-side movement of pulling drag link mechanism control liquid bucket, the liquid branch of collecting is flowed out to two exhalant canals during operation.This reflux ratio controller is in working order the time, because of its inside is marked with liquid, makes that moment is bigger in the drawing process, the pulling difficulty, and this reflux ratio controller must be closed main valve and could be disassembled maintenance to its inside, comparatively inconvenience after damage.
Summary of the invention
The purpose of this utility model is at the existing the problems referred to above of existing reflux ratio controller, has proposed the reflux ratio control device that a kind of repeat switch action is stable and be convenient to keep in repair.
The purpose of this utility model can realize by following technical proposal: a kind of reflux ratio control device, it is characterized in that, described reflux ratio control device comprises power supply, time relay module, switch control module and triple valve mechanism, power supply all is connected with time relay module with switch control module, described triple valve mechanism comprises the valve body with an intake tunnel and two exhalant canals and can seal any one spool in above-mentioned two exhalant canals, described spool is connected with switch control module, and described time relay module can be controlled spool by switch control module and periodically seal above-mentioned two exhalant canals back and forth.
When this reflux ratio control device is installed, two exhalant canals of triple valve mechanism are connected the return flow line of rectifying column and the extraction passage of overhead product respectively, the time of the exhalant canal by switch control module control spool sealing extraction channel direction and the ratio of the time of the exhalant canal of closed reflux channel direction are the ratio of phegma and the flow of gathering liquid, its size is exactly a reflux ratio, before using this reflux ratio control device, corresponding reflux ratio in can determining to produce by the cycle that time relay module controls switch control module action is set, easy to adjust reliable.
In above-mentioned a kind of reflux ratio control device, described time relay module comprises auxiliary reclay KA1, KA2, KA3 and time relay KT1 and KT2, described auxiliary reclay KA1 with normally closed button SB1, the mode of often opening button SB2 series connection is connected on the power supply, and also be parallel with the normally opened contact KA1-1 corresponding with auxiliary reclay KA1 at the above-mentioned button SB2 place that often opens, connect with normally-closed contact KA3-1 and normally opened contact KA1-4 after described auxiliary reclay KA2 and the time relay KT1 parallel connection, described auxiliary reclay KA3 with after time relay KT2 is in parallel with normally-closed contact KT2-1, normally opened contact KT1-1 and normally opened contact KA1-4 series connection, described normally opened contact KT1-1 place is parallel with a normally opened contact KA3-2, also is connected with the switch control module of normally opened contact KA2-1 and series connection with it on the described power supply.
When using this reflux ratio control device, press and often open button SB2, auxiliary reclay KA1 energising, the normally opened contact KA1-1 closure corresponding with it, unclamp and often open button SB2 this moment, often opens button SB2 and reply off-state, because of normally opened contact KA1-1 closure, auxiliary reclay KA1 keeps "on" position.Simultaneously, the normally opened contact KA1-4 closure corresponding with auxiliary reclay KA1, because of KA3-1 is a normally-closed contact, auxiliary reclay KA2 and time relay KT1 energising, time relay KT1 picks up counting, timing time then, normally opened contact KT1-1 closure is because of KT2-1 is a normally-closed contact, so auxiliary reclay KA3 and time relay KT2 energising, time relay KT2 picks up counting, and the normally-closed contact KA3-1 corresponding with auxiliary reclay KA3 disconnects, normally opened contact KA3-2 closure.Auxiliary reclay KA2 and time relay KT1 outage this moment, normally opened contact KT1-1 disconnects, KA3-2 is in closure state because of normally opened contact, auxiliary reclay KA3 and time relay KT2 keep "on" position, when the timing time of time relay K T2 then, normally-closed contact KT2-1 disconnects, auxiliary reclay KA3 and time relay KT2 outage, normally-closed contact KA3-1 closure, normally opened contact KA3-2 disconnects, normally-closed contact KT2-1 closure, auxiliary reclay KA2 and time relay KT1 energising, time relay KT1 restarts timing, so the alternate energisation process of repetition time relay K T1 and time relay KT2.When middle relay K A2 switches on, the normally opened contact KA2-1 closure corresponding with it, the switch control module energising of connecting with this contact, switch control module is controlled in interior two exhalant canals of spool closed valve, when middle relay K A2 cut off the power supply, normally opened contact KA2-1 disconnected, and spool is replied initial position, another exhalant canal in the closed valve, the time of spool sealing exhalant canal can be regulated by the timing time that changes time relay KT1 and KT2.In the time will quitting work, press normally closed button SB1, auxiliary reclay KA1 outage, the state before all devices are resumed work.
In above-mentioned a kind of reflux ratio control device, described switch control module comprises magnetic valve and pneumatic mechanism, described magnetic valve is connected with above-mentioned normally opened contact KA2-1, and this magnetic valve can be under energising and outage two states respectively by two exhalant canals of pneumatic mechanism control spool sealing in corresponding one.Magnetic valve is used to control the through and off of gas circuit, and under the situation of energising, magnetic valve is communicated with gas circuit, seal an exhalant canal by source of the gas by pneumatic mechanism control spool, in the next gas circuit of blocking of situation of outage, spool is replied initial position, seals another exhalant canal.
In above-mentioned a kind of reflux ratio control device, described pneumatic mechanism comprises air motor, and described air motor is connected with the spool of magnetic valve and triple valve mechanism simultaneously.Magnetic valve is communicated with or when blocking gas circuit, control air motor rotational valve core.
In above-mentioned a kind of reflux ratio control device, the normally opened contact KA1-2 that also is connected with mutual series connection on the described power supply is with run indicator L1 and the normally-closed contact KA1-3 that connect mutually and stop indicator lamp L2.Press when often opening button SB2, auxiliary reclay KA1 energising, normally opened contact KA1-2 closure, run indicator L1 lights, and simultaneously, normally-closed contact KA1-3 disconnects, and stops indicator lamp L2 and extinguishes.
In above-mentioned a kind of reflux ratio control device, be parallel with a power supply indicator L0 on the described time relay module, and this power supply indicator L0 is connected with power supply by miniature circuit breaker QF1 all with time relay module.The closed miniature circuit breaker QF1 of elder generation before using, this moment, power supply indicator L0 lighted, the energising of time relay module.
In above-mentioned a kind of reflux ratio control device, described triple valve mechanism is the Pneumatic three-way ball valve.
Compared with prior art, this reflux ratio control device has the following advantages:
1, this reflux ratio control device is controlled the energising situation of magnetic valve by the alternate energisation of KT1, KT2 two parts time relay, and then the spool that the control air motor rotates the Pneumatic three-way ball valve to be to seal two exhalant canals to and fro, and stable operation is reliable.
2, this reflux ratio control device is determined to seal respectively time of two exhalant canals to make that the control of reflux ratio is more accurate by the time-delay of the time relay.
3, this reflux ratio control device adopts the Pneumatic three-way ball valve to carry out shunting work, can directly keep in repair during damage, need not to disassemble, and has saved maintenance time.
When 4, this reflux ratio control device uses, control circuit partly can be positioned over non-explosion-proof district in the workshop, only need the Pneumatic three-way ball valve that uses is carried out the type selecting of requirement of explosion proof, adapt to the demand in various explosion-proof places easily.
Description of drawings
Fig. 1 is the structural representation of this reflux ratio control device.
Fig. 2 is the circuit diagram of the time relay module of this reflux ratio control device.
Fig. 3 is the circuit diagram that the power supply of this reflux ratio control device is connected with each module.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, a kind of reflux ratio control device, comprise power supply, time relay module, magnetic valve, air motor and Pneumatic three-way ball valve, power supply all is connected with time relay module with magnetic valve, the Pneumatic three-way ball valve comprises the valve body with an intake tunnel and two exhalant canals and can seal any one spool in two exhalant canals, air motor is connected with the spool of magnetic valve and Pneumatic three-way ball valve simultaneously, and magnetic valve also is connected with source of the gas.
As shown in Figure 2, time relay module comprises auxiliary reclay KA1, KA2, KA3 and time relay KT1 and KT2, auxiliary reclay KA1 with normally closed button SB1, the mode of often opening button SB2 series connection is connected on the power supply, and also be parallel with the normally opened contact KA1-1 corresponding with auxiliary reclay KA1 at the above-mentioned button SB2 place that often opens, connect with normally-closed contact KA3-1 and normally opened contact KA1-4 after auxiliary reclay KA2 and the time relay KT1 parallel connection, auxiliary reclay KA3 with after time relay KT2 is in parallel with normally-closed contact KT2-1, normally opened contact KT1-1 and normally opened contact KA1-4 series connection, normally opened contact KT1-1 place is parallel with a normally opened contact KA3-2.The normally opened contact KA1-2 that also is connected with mutual series connection on the power supply is with run indicator L1 and the normally-closed contact KA1-3 that connect mutually and stop indicator lamp L2.
As shown in Figure 3, also be parallel with a power supply indicator L0 on the time relay module, power supply indicator L0 all is connected with power supply by miniature circuit breaker QF1 with time relay module.Also be connected with the normally opened contact KA2-1 and the magnetic valve of mutual series connection on the power supply.
When using this reflux ratio control device, the closed miniature circuit breaker QF1 of elder generation, power supply indicator L0 lights, press and often open button SB2, auxiliary reclay KA1 energising, normally opened contact KA1-1 corresponding and normally opened contact KA1-2 closure with it, normally-closed contact KA1-3 disconnects, stop indicator lamp L2 and extinguish, run indicator L1 lights.Unclamp and often open button SB2 this moment, often opens button SB2 and reply off-state, and because of normally opened contact KA1-1 closure, auxiliary reclay KA1 keeps "on" position.Simultaneously, the normally opened contact KA1-4 closure corresponding with auxiliary reclay KA1, because of KA3-1 is a normally-closed contact, auxiliary reclay KA2 and time relay KT1 energising, time relay KT1 picks up counting.
When time relay K T1 timing time then, normally opened contact KT1-1 closure, because of KT2-1 is a normally-closed contact, so auxiliary reclay KA3 and time relay KT2 energising, time relay KT2 picks up counting, and the normally-closed contact KA3-1 corresponding with auxiliary reclay KA3 disconnects, normally opened contact KA3-2 closure, auxiliary reclay KA2 and time relay KT1 outage this moment, normally opened contact KT1-1 disconnects, KA3-2 is in closure state because of normally opened contact, and auxiliary reclay KA3 and time relay KT2 keep "on" position.
When the timing time of time relay K T2 then, normally-closed contact KT2-1 disconnects, auxiliary reclay KA3 and time relay KT2 outage, make normally-closed contact KA3-1 closure, normally opened contact KA3-2 disconnects, normally-closed contact KT2-1 closure, auxiliary reclay KA2 and time relay KT1 energising, time relay KT1 restarts timing, so the alternate energisation process of repetition time relay K T1 and time relay KT2.
When middle relay K A2 switches on, the normally opened contact KA2-1 closure corresponding with it, the magnetic valve energising of connecting with this contact, magnetic valve leads to the gas circuit of air motor, the gas of source of the gas control air motor rotational valve core, and in two exhalant canals in the sealing Pneumatic three-way ball valve body one; When middle relay K A2 cut off the power supply, normally opened contact KA2-1 disconnected, and magnetic valve blocks the gas circuit of source of the gas, and air motor control spool is replied initial position, another exhalant canal in the closed valve.The time of two exhalant canals of spool sealing can be regulated by the timing time that changes time relay KT1 and time relay KT2.
In the time will stopping the work of this reflux ratio control device, can press normally closed button SB1, auxiliary reclay KA1 outage this moment, the normally opened contact KA1-4 corresponding with it disconnects, state before all devices of time relay module are resumed work, normally opened contact KA2-1 disconnects because of auxiliary reclay KA2 outage causing, the magnetic valve outage, the spool of air motor and Pneumatic three-way ball valve is also replied original state, unclamp normally closed button SB1 then, this button is replied closure state, disconnects miniature circuit breaker QF1, power supply stops to be time relay module for power supply that power supply indicator L0 extinguishes.
When this reflux ratio control device is installed, two exhalant canals on the Pneumatic three-way ball valve body can be connected the return flow line of rectifying column and the extraction passage of overhead product respectively.This reflux ratio control device is periodically logical by in the time relay module middle relay K A2 being carried out, outage, control closure and the disconnection of the normally opened contact KA2-1 corresponding with it, reach logical to magnetic valve, the purpose of outage, and then the through and off by solenoid control source of the gas gas circuit, utilize air motor to control the exhalant canal of spool sealing extraction channel direction and the exhalant canal of closed reflux channel direction, the ratio of time of two exhalant canals of sealing is the ratio of phegma and the flow of gathering liquid, its size is exactly a reflux ratio, before using this reflux ratio control device, can determine corresponding reflux ratio in the production by the timing time that time relay KT1 and KT2 are set, easy to adjust reliable.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Claims (7)

1. reflux ratio control device, it is characterized in that, described reflux ratio control device comprises power supply, time relay module, switch control module and triple valve mechanism, power supply all is connected with time relay module with switch control module, described triple valve mechanism comprises the valve body with an intake tunnel and two exhalant canals and can seal any one spool in above-mentioned two exhalant canals, described spool is connected with switch control module, and described time relay module can be controlled spool by switch control module and periodically seal above-mentioned two exhalant canals back and forth.
2. a kind of reflux ratio control device according to claim 1, it is characterized in that, described time relay module comprises auxiliary reclay KA1, KA2, KA3 and time relay KT1 and KT2, described auxiliary reclay KA1 with normally closed button SB1, the mode of often opening button SB2 series connection is connected on the power supply, and also be parallel with the normally opened contact KA1-1 corresponding with auxiliary reclay KA1 at the above-mentioned button SB2 place that often opens, connect with normally-closed contact KA3-1 and normally opened contact KA1-4 after described auxiliary reclay KA2 and the time relay KT1 parallel connection, described auxiliary reclay KA3 with after time relay KT2 is in parallel with normally-closed contact KT2-1, normally opened contact KT1-1 and normally opened contact KA1-4 series connection, described normally opened contact KT1-1 place is parallel with a normally opened contact KA3-2, also is connected with the switch control module of normally opened contact KA2-1 and series connection with it on the described power supply.
3. a kind of reflux ratio control device according to claim 2, it is characterized in that, described switch control module comprises magnetic valve and pneumatic mechanism, described magnetic valve is connected with above-mentioned normally opened contact KA2-1, and this magnetic valve can be under energising and outage two states respectively by two exhalant canals of pneumatic mechanism control spool sealing in corresponding one.
4. a kind of reflux ratio control device according to claim 3 is characterized in that described pneumatic mechanism comprises air motor, and described air motor is connected with the spool of magnetic valve and triple valve mechanism simultaneously.
5. according to claim 1 or 2 or 3 or 4 described a kind of reflux ratio control device, it is characterized in that the normally opened contact KA1-2 that also is connected with mutual series connection on the described power supply is with run indicator L1 and the normally-closed contact KA1-3 that connect mutually and stop indicator lamp L2.
6. according to claim 1 or 2 or 3 or 4 described a kind of reflux ratio control device, it is characterized in that, be parallel with a power supply indicator L0 on the described time relay module, and this power supply indicator L0 is connected with power supply by miniature circuit breaker QF 1 all with time relay module.
7. according to claim 1 or 2 or 3 or 4 described a kind of reflux ratio control device, it is characterized in that described triple valve mechanism is the Pneumatic three-way ball valve.
CN2010202684690U 2010-07-23 2010-07-23 Reflux ratio control device Expired - Fee Related CN201727981U (en)

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CN2010202684690U CN201727981U (en) 2010-07-23 2010-07-23 Reflux ratio control device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106093770A (en) * 2016-07-29 2016-11-09 国网山东省电力公司济南供电公司 Separating tests auxiliary device is closed in the short circuit of a kind of low-voltage circuit breaker
CN111821708A (en) * 2020-07-27 2020-10-27 湖北省宏源药业科技股份有限公司 Floating ball type equipment for automatically limiting distillation flow velocity

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106093770A (en) * 2016-07-29 2016-11-09 国网山东省电力公司济南供电公司 Separating tests auxiliary device is closed in the short circuit of a kind of low-voltage circuit breaker
CN106093770B (en) * 2016-07-29 2019-01-29 国网山东省电力公司济南供电公司 A kind of short circuit conjunction separating tests auxiliary device of low-voltage circuit breaker
CN111821708A (en) * 2020-07-27 2020-10-27 湖北省宏源药业科技股份有限公司 Floating ball type equipment for automatically limiting distillation flow velocity

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110202

Termination date: 20170723

CF01 Termination of patent right due to non-payment of annual fee